1321405204060 has 12 divisors (see below), whose sum is σ = 2774950928568. Its totient is φ = 528562081616.

The previous prime is 1321405203997. The next prime is 1321405204073. The reversal of 1321405204060 is 604025041231.

It is a super-2 number, since 2×1321405204060² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33035130082 + ... + 33035130121.

It is an arithmetic number, because the mean of its divisors is an integer number (231245910714).

Almost surely, 2^{1321405204060} is an apocalyptic number.

1321405204060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321405204060 is an abundant number, since it is smaller than the sum of its proper divisors (1453545724508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321405204060 is a wasteful number, since it uses less digits than its factorization.

1321405204060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66070260212 (or 66070260210 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 1321405204060 in words is "one trillion, three hundred twenty-one billion, four hundred five million, two hundred four thousand, sixty".